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1.
JAMA Intern Med ; 2024 Apr 22.
Article in English | MEDLINE | ID: mdl-38648065

ABSTRACT

Importance: Limited evidence exists on the association between initiation of antihypertensive medication and risk of fractures in older long-term nursing home residents. Objective: To assess the association between antihypertensive medication initiation and risk of fracture. Design, Setting, and Participants: This was a retrospective cohort study using target trial emulation for data derived from 29 648 older long-term care nursing home residents in the Veterans Health Administration (VA) from January 1, 2006, to October 31, 2019. Data were analyzed from December 1, 2021, to November 11, 2023. Exposure: Episodes of antihypertensive medication initiation were identified, and eligible initiation episodes were matched with comparable controls who did not initiate therapy. Main Outcome and Measures: The primary outcome was nontraumatic fracture of the humerus, hip, pelvis, radius, or ulna within 30 days of antihypertensive medication initiation. Results were computed among subgroups of residents with dementia, across systolic and diastolic blood pressure thresholds of 140 and 80 mm Hg, respectively, and with use of prior antihypertensive therapies. Analyses were adjusted for more than 50 baseline covariates using 1:4 propensity score matching. Results: Data from 29 648 individuals were included in this study (mean [SD] age, 78.0 [8.4] years; 28 952 [97.7%] male). In the propensity score-matched cohort of 64 710 residents (mean [SD] age, 77.9 [8.5] years), the incidence rate of fractures per 100 person-years in residents initiating antihypertensive medication was 5.4 compared with 2.2 in the control arm. This finding corresponded to an adjusted hazard ratio (HR) of 2.42 (95% CI, 1.43-4.08) and an adjusted excess risk per 100 person-years of 3.12 (95% CI, 0.95-6.78). Antihypertensive medication initiation was also associated with higher risk of severe falls requiring hospitalizations or emergency department visits (HR, 1.80 [95% CI, 1.53-2.13]) and syncope (HR, 1.69 [95% CI, 1.30-2.19]). The magnitude of fracture risk was numerically higher among subgroups of residents with dementia (HR, 3.28 [95% CI, 1.76-6.10]), systolic blood pressure of 140 mm Hg or higher (HR, 3.12 [95% CI, 1.71-5.69]), diastolic blood pressure of 80 mm Hg or higher (HR, 4.41 [95% CI, 1.67-11.68]), and no recent antihypertensive medication use (HR, 4.77 [95% CI, 1.49-15.32]). Conclusions and Relevance: Findings indicated that initiation of antihypertensive medication was associated with elevated risks of fractures and falls. These risks were numerically higher among residents with dementia, higher baseline blood pressures values, and no recent antihypertensive medication use. Caution and additional monitoring are advised when initiating antihypertensive medication in this vulnerable population.

2.
BMC Womens Health ; 23(1): 616, 2023 11 17.
Article in English | MEDLINE | ID: mdl-37978490

ABSTRACT

OBJECTIVES: To assess psychometric properties of two scales developed to measure the quality of person-centered care during pregnancy and childbirth in the United States-the Person-Centered Prenatal Care (PCPC-US) and Person-Centered Maternity Care (PCMC-US) scales-in a low-income predominantly Latinx population in California. METHODS: Data were collected from July 2020 to June 2023 from surveys of low-income pregnant and birthing people in Fresno, California, participating in the "Engaging Mothers and Babies; Reimagining Antenatal Care for Everyone" (EMBRACE) trial. Research staff administered the 26-item PCPC-US scale at 30-34 weeks' gestation (n = 315) and the 35-item PCMC-US scale at 10-14 weeks after birth (n = 286), using the language preferred by the participant (English or Spanish). We assessed construct, criterion, and known group validity and internal consistency of the scales. RESULTS: 78% of respondents identified as Latinx. Factor analysis identified one dominant factor for each scale that accounted for over 60% of the cumulative variance, with most items loading at > 0.3. The items also loaded adequately on sub-scales for "dignity and respect," "communication and autonomy," and "responsive and supportive care." Cronbach's alpha for the full scales were > 0.9 and between 0.70 and 0.87 for the sub-scales. Summative scores range from 0 to 100, with higher scores indicating higher person-centered care. Correlations with scores on scales measuring prenatal care quality and birth experience provided evidence for criterion validity, while associations with known predictors provided evidence for known-group validity. CONCLUSIONS: The PCPC-US and PCMC-US scales, which were developed using a community-engaged process and found to have good psychometric properties in a largely high-income sample of Black women, were shown to also have good psychometric properties in a sample of low-income primarily Latinx women. Both scales provide valid and reliable tools to measure person-centered care experiences among minoritized communities to support efforts to reduce existing birth inequities.


Subject(s)
Maternal Health Services , Obstetrics , Patient-Centered Care , Female , Humans , Pregnancy , California , Hispanic or Latino , Psychometrics , Reproducibility of Results , Surveys and Questionnaires
3.
JAMA ; 330(13): 1280-1282, 2023 10 03.
Article in English | MEDLINE | ID: mdl-37676665

ABSTRACT

This study assesses whether colorectal cancer screening varied by predicted life expectancy in a national sample of Veterans Affairs patients aged 76 to 85 years.


Subject(s)
Colorectal Neoplasms , Early Detection of Cancer , Life Expectancy , Humans , Age Factors , Colonoscopy/methods , Colorectal Neoplasms/diagnosis , Colorectal Neoplasms/epidemiology , Early Detection of Cancer/methods , Mass Screening/methods , United States/epidemiology , Aged , Aged, 80 and over
4.
J Am Geriatr Soc ; 71(7): 2131-2140, 2023 07.
Article in English | MEDLINE | ID: mdl-36826917

ABSTRACT

BACKGROUND: Optimal systolic BP (SBP) control in nursing home residents is uncertain, largely because this population has been excluded from clinical trials. We examined the association of SBP levels with the risk of cardiovascular (CV) events and mortality in Veterans Affairs (VA) nursing home residents on different numbers of antihypertensive medications. METHODS: Our study included 36,634 residents aged ≥65 years with a VA nursing home stay of ≥90 days from October 2006-June 2019. SBP was averaged over the first week after admission and divided into categories. Cause-specific hazard ratios (HRs) of SBP categories with CV events (primary outcome) and all-cause mortality (secondary outcome) were examined using Cox regression and multistate modeling stratified by the number of antihypertensive medications used at admission (0, 1 or 2, and ≥3 medications). RESULTS: More than 76% of residents were on antihypertensive therapy and 20% received ≥3 medications. In residents on antihypertensive therapy, a low SBP < 110 mmHg (compared with SBP 130 ~ 149 mmHg) was associated with a greater CV risk (adjusted HR [95% confidence interval]: 1.47 [1.28-1.68] in 1 or 2 medications group, and 1.41 [1.19-1.67] in ≥3 medications group). In residents on no antihypertensives, both low SBP < 110 mmHg and high SBP ≥ 150 mmHg were associated with higher mortality; while in residents receiving any antihypertensives, a low SBP was associated with higher mortality and the highest point estimates were for SBP < 110 mmHg (1.36 [1.28-1.45] in 1 or 2 medications group, and 1.47 [1.31-1.64] in ≥3 medications group). CONCLUSIONS: The associations of SBP with CV and mortality risk varied by the intensity of antihypertensive treatment among VA nursing home residents. A low SBP among those receiving antihypertensives was associated with increased CV and mortality risk, and untreated high SBP was associated with higher mortality. More research is needed on the benefits and harms of SBP lowering in long-term care populations.


Subject(s)
Hypertension , Hypotension , Humans , Antihypertensive Agents/therapeutic use , Antihypertensive Agents/pharmacology , Blood Pressure/physiology , Hypertension/complications , Hypotension/complications , Nursing Homes
5.
J Am Geriatr Soc ; 70(8): 2280-2290, 2022 08.
Article in English | MEDLINE | ID: mdl-35524763

ABSTRACT

BACKGROUND: Inadequate treatment of high blood pressure (BP) can lead to preventable adverse events in nursing home residents, while excessive treatment can lead to associated harms. METHODS: Data were extracted from the VA electronic health record and Bar Code Medication Administration system on 40,079 long-term care residents aged ≥65 years from October 2006 through September 2018 (FY2007-2018). Hypertension prevalence at admission was identified by ICD code(s) in the year prior, and antihypertensive medication use was defined as administration ≥50% of days. BP measures were averaged over 2-year epochs. RESULTS: The age-standardized prevalence of hypertension diagnosis at admission increased from 75.2% in FY2007-2008 to 85.1% in FY2017-2018 (p-value for trend <0.001). Rates of BP treatment and control among residents with hypertension at admission declined slightly over time (p-values for trend <0.001) but remained high (80.3% treated in FY2017-2018, 80.1% with average BP <140/90 mmHg). The age-adjusted prevalence of chronic low BP (average <90/60 mmHg) also declined from 11.1% in FY2007-2008 to 4.7% in FY2017-2018 (p-value for trend <0.001). Persons identified as Black race or Hispanic ethnicity and those with a history of diabetes, stroke, and renal disease were less likely to have an average BP <140/90 mmHg. CONCLUSIONS: Hypertension is well controlled in VA nursing homes, and recent trends of less intensive BP control were accompanied by a lower prevalence of chronic low BP. Nonetheless, some high-risk populations have average BP levels >140/90 mmHg. Future research is needed to better understand the benefits and harms of BP control in nursing home residents.


Subject(s)
Antihypertensive Agents , Hypertension , Antihypertensive Agents/pharmacology , Antihypertensive Agents/therapeutic use , Blood Pressure , Humans , Hypertension/diagnosis , Hypertension/drug therapy , Hypertension/epidemiology , Nursing Homes , Prevalence
6.
BMC Geriatr ; 22(1): 434, 2022 05 18.
Article in English | MEDLINE | ID: mdl-35585537

ABSTRACT

BACKGROUND: Electronic health record (EHR) prediction models may be easier to use in busy clinical settings since EHR data can be auto-populated into models. This study assessed whether adding functional status and/or Medicare claims data (which are often not available in EHRs) improves the accuracy of a previously developed Veterans Affairs (VA) EHR-based mortality index. METHODS: This was a retrospective cohort study of veterans aged 75 years and older enrolled in VA primary care clinics followed from January 2014 to April 2020 (n = 62,014). We randomly split participants into development (n = 49,612) and validation (n = 12,402) cohorts. The primary outcome was all-cause mortality. We performed logistic regression with backward stepwise selection to develop a 100-predictor base model using 854 EHR candidate variables, including demographics, laboratory values, medications, healthcare utilization, diagnosis codes, and vitals. We incorporated functional measures in a base + function model by adding activities of daily living (range 0-5) and instrumental activities of daily living (range 0-7) scores. Medicare data, including healthcare utilization (e.g., emergency department visits, hospitalizations) and diagnosis codes, were incorporated in a base + Medicare model. A base + function + Medicare model included all data elements. We assessed model performance with the c-statistic, reclassification metrics, fraction of new information provided, and calibration plots. RESULTS: In the overall cohort, mean age was 82.6 years and 98.6% were male. At the end of follow-up, 30,263 participants (48.8%) had died. The base model c-statistic was 0.809 (95% CI 0.805-0.812) in the development cohort and 0.804 (95% CI 0.796-0.812) in the validation cohort. Validation cohort c-statistics for the base + function, base + Medicare, and base + function + Medicare models were 0.809 (95% CI 0.801-0.816), 0.811 (95% CI 0.803-0.818), and 0.814 (95% CI 0.807-0.822), respectively. Adding functional status and Medicare data resulted in similarly small improvements among other model performance measures. All models showed excellent calibration. CONCLUSIONS: Incorporation of functional status and Medicare data into a VA EHR-based mortality index led to small but likely clinically insignificant improvements in model performance.


Subject(s)
Medicare , Veterans , Activities of Daily Living , Aged , Aged, 80 and over , Cohort Studies , Electronic Health Records , Female , Functional Status , Humans , Male , Retrospective Studies , United States/epidemiology , United States Department of Veterans Affairs
7.
Am J Hypertens ; 35(1): 65-72, 2022 01 05.
Article in English | MEDLINE | ID: mdl-34505872

ABSTRACT

BACKGROUND: Aging is accompanied by an overall dysregulation of many dynamic physiologic processes including those related to blood pressure (BP). While year-to-year BP variability is associated with cardiovascular events and mortality, no studies have examined this trend with more frequent BP assessments. Our study objective is to take the next step to examine week-to-week BP dynamics-pattern, variability, and complexity-before death. METHODS: Using a retrospective study design, we assessed BP dynamics in the 6 months before death in long-term nursing home residents between 1 October 2006 and 30 September 2017. Variability was characterized using SD and mean squared error after adjusting for diurnal variations. Complexity (i.e., amount of novel information in a trend) was examined using Shannon's entropy (bits). Generalized linear models were used to examine factors associated with overall BP variability. RESULTS: We identified 17,953 nursing home residents (98.0% male, 82.5% White, mean age 80.2 years, and mean BP 125.7/68.6 mm Hg). Despite a slight trend of decreasing systolic week-to-week BP over time (delta = 7.2 mm Hg), week-to-week complexity did not change in the 6 months before death (delta = 0.02 bits). Average weekly BP variability was stable until the last 3-4 weeks of life, at which point variability increased by 30% for both systolic and diastolic BP. Factors associated with BP variability include average weekly systolic/diastolic BP, days in the nursing home, days in the hospital, and changes to antihypertensive medications. CONCLUSIONS: Week-to-week BP variability increases substantially in the last month of life, but complexity does not change. Changes in care patterns may drive the increase in BP variability as one approaches death.


Subject(s)
Hypertension , Aged, 80 and over , Blood Pressure/physiology , Blood Pressure Monitoring, Ambulatory , Female , Humans , Hypertension/complications , Hypertension/diagnosis , Hypertension/drug therapy , Male , Nursing Homes , Retrospective Studies
8.
PLoS One ; 13(7): e0200496, 2018.
Article in English | MEDLINE | ID: mdl-30044854

ABSTRACT

BACKGROUND: Pulmonary nodule guidelines do not indicate how to individualize follow-up according to comorbidity or life expectancy. OBJECTIVES: To characterize comorbidity and life expectancy in older veterans with incidental, symptom-detected, or screen-detected nodules in 2008-09 compared to 2013-14. To determine the impact of these patient factors on four-year nodule follow-up among the 2008-09 subgroup. DESIGN: Retrospective cohort study. SETTING: Urban Veterans Affairs Medical Center. PARTICIPANTS: 243 veterans age ≥65 with newly diagnosed pulmonary nodules in 2008-09 (followed for four years through 2012 or 2013) and 446 older veterans diagnosed in 2013-14. MEASUREMENTS: The primary outcome was receipt of any follow-up nodule imaging and/or biopsy within four years after nodule diagnosis. Primary predictor variables included age, Charlson-Deyo Comorbidity Index (CCI), and life expectancy. Favorable life expectancy was defined as age 65-74 with CCI 0 while limited life expectancy was defined as age ≥85 with CCI ≥1 or age ≥65 with CCI ≥4. Interaction by nodule size was also examined. RESULTS: From 2008-09 to 2013-14, the number of older veterans diagnosed with new pulmonary nodules almost doubled, including among those with severe comorbidity and limited life expectancy. Overall among the 2008-09 subgroup, receipt of nodule follow-up decreased with increasing comorbidity (CCI ≥4 versus 0: adjusted RR 0.61, 95% CI 0.39-0.95) with a trend towards decreased follow-up among those with limited life expectancy (adjusted RR 0.69, 95% CI 0.48-1.01). However, we detected an interaction effect with nodule size such that comorbidity and life expectancy were associated with decreased follow-up only among those with nodules ≤6 mm. CONCLUSIONS: We found some individualization of pulmonary nodule follow-up according to comorbidity and life expectancy in older veterans with smaller nodules only. As increased imaging detects nodules in sicker patients, guidelines need to be more explicit about how to best incorporate comorbidity and life expectancy to maximize benefits and minimize harms for patients with nodules of all sizes.


Subject(s)
Life Expectancy , Lung Neoplasms/epidemiology , Practice Patterns, Physicians'/statistics & numerical data , Solitary Pulmonary Nodule/epidemiology , Veterans/statistics & numerical data , Age Factors , Aged , Aged, 80 and over , Biopsy , Comorbidity , Early Detection of Cancer/standards , Early Detection of Cancer/statistics & numerical data , Female , Humans , Incidental Findings , Lung/diagnostic imaging , Lung/pathology , Lung Neoplasms/diagnosis , Lung Neoplasms/pathology , Male , Practice Guidelines as Topic , Practice Patterns, Physicians'/standards , Retrospective Studies , Solitary Pulmonary Nodule/diagnosis , Solitary Pulmonary Nodule/pathology , United States/epidemiology , United States Department of Veterans Affairs/statistics & numerical data
10.
PLoS One ; 12(6): e0178726, 2017.
Article in English | MEDLINE | ID: mdl-28570678

ABSTRACT

BACKGROUND: The ability to perform basic daily activities ("functional status") is key to older adults' quality of life and strongly predicts health outcomes. However, data on functional status are seldom collected during routine clinical care in a way that makes them available for clinical use and research. OBJECTIVES: To validate functional status data that Veterans Affairs (VA) medical centers recently started collecting during routine clinical care, compared to the same data collected in a structured research setting. DESIGN: Prospective validation study. SETTING: Seven VA medical centers that collected complete data on 5 activities of daily living (ADLs) and 8 instrumental activities of daily living (IADLs) from older patients attending primary care appointments. PARTICIPANTS: Randomly selected patients aged 75 and older who had new ADL and IADL data collected during a primary care appointment (N = 252). We oversampled patients with ADL dependence and applied these sampling weights to our analyses. MEASUREMENTS: Telephone-based interviews using a validated measure to assess the same 5 ADLs and 8 IADLs. RESULTS: Mean age was 83 years, 96% were male, and 75% were white. Of 85 participants whom VA data identified as dependent in 1 or more ADLs, 74 (87%) reported being dependent by interview; of 167 whom VA data identified as independent in ADLs, 149 (89%) reported being independent. The sample-weighted sensitivity of the VA data for identifying ADL dependence was 45% (95% CI, 29%, 62%) compared to the reference standard, the specificity was 99% (95% CI, 99%, >99%), and the positive predictive value was 87% (95% CI, 79%, 93%). The weighted kappa statistic was 0.55 (95% CI, 0.41, 0.68) for the agreement between VA data and research-collected data in identifying ADL dependence. CONCLUSION: Overall agreement of VA functional status data with a reference standard was moderate, with fair sensitivity but high specificity and positive predictive value.


Subject(s)
Activities of Daily Living , Veterans , Aged , Aged, 80 and over , Female , Humans , Male , Prospective Studies , Quality of Life
11.
J Am Geriatr Soc ; 65(4): 754-762, 2017 Apr.
Article in English | MEDLINE | ID: mdl-27861719

ABSTRACT

OBJECTIVES: To evaluate how often beta-blockers were started after acute myocardial infarction (AMI) in nursing home (NH) residents who previously did not use these drugs and to evaluate which factors were associated with post-AMI use of beta-blockers. DESIGN: Retrospective cohort using linked national Minimum Data Set assessments; Online Survey, Certification and Reporting records; and Medicare claims. SETTING: U.S. NHs. PARTICIPANTS: National cohort of 15,720 residents aged 65 and older who were hospitalized for AMI between May 2007 and March 2010, had not taken beta-blockers for at least 4 months before their AMI, and survived 14 days or longer after NH readmission. MEASUREMENTS: The outcome was beta-blocker initiation within 30 days of NH readmission. RESULTS: Fifty-seven percent (n = 8,953) of residents initiated a beta-blocker after AMI. After covariate adjustment, use of beta-blockers was less in older residents (ranging from odds ratio (OR) = 0.89, 95% confidence interval (CI) = 0.79-1.00 for aged 75-84 to OR = 0.65, 95% CI = 0.54-0.79 for ≥95 vs 65-74) and less in residents with higher levels of functional impairment (dependent or totally dependent vs independent to limited assistance: OR = 0.84, 95% CI = 0.75-0.94) and medication use (≥15 vs ≤10 medications: OR = 0.89, 95% CI = 0.80-0.99). A wide variety of resident and NH characteristics were not associated with beta-blocker use, including sex, cognitive function, comorbidity burden, and NH ownership. CONCLUSION: Almost half of older NH residents in the United States do not initiate a beta-blocker after AMI. The absence of observed factors that strongly predict beta-blocker use may indicate a lack of consensus on how to manage older NH residents, suggesting the need to develop and disseminate thoughtful practice standards.


Subject(s)
Adrenergic beta-Antagonists/therapeutic use , Drug Utilization/statistics & numerical data , Myocardial Infarction/drug therapy , Practice Patterns, Physicians'/trends , Aged , Aged, 80 and over , Female , Hospitalization , Humans , Male , Myocardial Infarction/mortality , Retrospective Studies , Survival Analysis , United States/epidemiology
13.
Pain Med ; 16(2): 319-27, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25352175

ABSTRACT

BACKGROUND AND OBJECTIVE: There has been concern over rising use of prescription opioids in young and middle-aged adults. Much less is known about opioid prescribing in older adults, for whom clinical recommendations and the balance of risks and benefits differ from younger adults. We evaluated changes in use of opioids and other analgesics in a national sample of clinic visits made by older adults between 1999 and 2010. DESIGN, SETTING, AND SUBJECTS: Observational study of adults aged 65 and older from the 1999-2010 National Ambulatory Medical Care Survey and National Hospital Ambulatory Medical Care Survey, serial cross-sectional surveys of outpatient visits in the United States. METHODS: Medication use was assessed at each study visit and included medications in use prior to the visit and medications newly prescribed at the visit. Results were adjusted for survey weights and design factors to provide nationally representative estimates. RESULTS: Mean age was 75 ± 7 years, and 45% of visits occurred in primary care settings. Between 1999-2000 and 2009-2010, the percent of clinic visits at which an opioid was used rose from 4.1% to 9.0% (P < 0.001). Although use of all major opioid classes increased, the largest contributor to increased use was hydrocodone-containing combination opioids, which rose from 1.1% to 3.5% of visits over the study period (P < 0.001). Growth in opioid use was observed across a wide range of patient and clinic characteristics, including in visits for musculoskeletal problems (10.7% of visits in 1999-2000 to 17.0% in 2009-2010, P < 0.001) and in visits for other reasons (2.8% to 7.3%, P < 0.001). CONCLUSIONS: Opioid use by older adults visiting clinics more than doubled between 1999 and 2010, and occurred across a wide range of patient characteristics and clinic settings.


Subject(s)
Analgesics, Opioid/therapeutic use , Practice Patterns, Physicians'/statistics & numerical data , Aged , Analgesics/therapeutic use , Cross-Sectional Studies , Female , Health Care Surveys , Humans , Infant, Newborn , Male , United States
14.
Urology ; 84(5): 1058-65, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25443902

ABSTRACT

OBJECTIVE: To investigate how statin use is associated with the probability of having an abnormal screening prostate-specific antigen (PSA) result according to common PSA thresholds for biopsy (>2.5, >4.0, and >6.5 ng/mL). METHODS: We conducted a cross-sectional study of 323,426 men aged ≥65 years who had a screening PSA test in 2003 at a Veterans Affairs facility. The primary predictor was the use of statin medications at the time of index screening PSA test. The main outcome was the screening PSA value. Poisson regressions were performed to calculate adjusted relative risks for having an abnormal screening PSA result according to statin usage. RESULTS: Percentages of men with PSA results exceeding commonly used thresholds of >2.5, >4.0, and >6.5 ng/mL were 21.0%, 7.6%, and 1.6%, respectively. These percentages decreased with statin use, increasing statin dose, duration of statin use, and potency of the statin. For example, after adjusting for age, the percentage of men having a PSA level >4.0 ng/mL ranged from 8.2% in non-statin users to 6.2% in men prescribed with >40 mg of simvastatin dose. Adjusted relative risks of having a PSA level >4.0 ng/mL were 0.89 (95% confidence interval [CI], 0.86-0.93), 0.87 (95% CI, 0.84-0.91), and 0.83 (95% CI, 0.80-0.87), respectively for men on simvastatin dose of 5-20, >20-40, and >40 mg vs non-statin users. CONCLUSION: Statin use is associated with a reduction in the probability that an older man will have an abnormal screening PSA result, regardless of the PSA threshold. This reduction is more pronounced with higher statin dose, longer statin duration, and higher statin potency.


Subject(s)
Hydroxymethylglutaryl-CoA Reductase Inhibitors/adverse effects , Prostate-Specific Antigen/blood , Prostatic Neoplasms/blood , Aged , Aged, 80 and over , Biopsy , Cohort Studies , Cross-Sectional Studies , Hospitals, Veterans , Humans , Male , Poisson Distribution , Probability , Prostatic Neoplasms/diagnosis , Risk , Simvastatin/pharmacology , Treatment Outcome , United States
15.
Urology ; 83(3): 599-605, 2014 Mar.
Article in English | MEDLINE | ID: mdl-24439009

ABSTRACT

OBJECTIVE: To determine the distribution of screening prostate-specific antigen (PSA) values in older men, and how different PSA thresholds affect the proportion of white, black, and Latino men who would have an abnormal screening result across advancing age groups. METHODS: We used linked national Veterans Affairs and Medicare data to determine the value of the first screening PSA test (ng/mL) of 327,284 men older than 65 years who underwent PSA screening in the Veterans Affairs health care system in 2003. We calculated the proportion of men with an abnormal PSA result based on age, race, and common PSA thresholds. RESULTS: Among men older than 65 years, 8.4% had a PSA >4.0 ng/mL. The percentage of men with a PSA >4.0 ng/mL increased with age and was highest in black men (13.8%) vs white (8.0%) or Latino men (10.0%) (P <.001). Combining age and race, the probability of having a PSA >4.0 ng/mL ranged from 5.1% of Latino men aged 65-69 years to 27.4% of black men older than 85 years. Raising the PSA threshold from >4.0 ng/mL to >10.0 ng/mL reclassified the greatest percentage of black men older than 85 years (18.3% absolute change) and the lowest percentage of Latino men aged 65-69 years (4.8% absolute change) as being under the biopsy threshold (P <.001). CONCLUSION: Age, race, and PSA threshold together affect the pretest probability of an abnormal screening PSA result. Based on screening PSA distributions, stopping screening among men whose PSA <3 ng/mL means more than 80% of white and Latino men older than 70 years would stop further screening, and increasing the biopsy threshold to >10 ng/mL has the greatest effect on reducing the number of older black men who will face biopsy decisions after screening.


Subject(s)
Black or African American/statistics & numerical data , Hispanic or Latino/statistics & numerical data , Prostate-Specific Antigen/blood , Prostatic Neoplasms/blood , Prostatic Neoplasms/ethnology , White People/statistics & numerical data , Age Factors , Aged , Aged, 80 and over , Cross-Sectional Studies , Humans , Male , Probability , United States/epidemiology
16.
Med Care ; 51(10): 901-7, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23969589

ABSTRACT

BACKGROUND: Little is known about how often contextual factors such as patient preferences and competing priorities impact prescribing of guideline-recommended medications, or about the extent to which these factors are documented in medical records and available to performance measurement systems. METHODS: Mixed-methods study of 295 veterans aged 50 years and older in 4 VA health care systems who had systolic heart failure and were not prescribed a ß-blocker and/or an angiotensin converting enzyme inhibitor or angiotensin-receptor blocker. Reasons for nontreatment were identified from clinic notes and from interviews with 62 primary care clinicians caring for these patients. These reasons were classified using a published taxonomy. RESULTS: Among 295 patients not receiving guideline-recommended drugs for heart failure, chart review identified biomedical reasons for nonprescribing in 42%-58% of patients and contextual reasons in 11%-17%. Clinician interviews identified twice as many reasons for nonprescribing as chart review (mean 1.6 vs. 0.8 reasons per patient, P<0.001). In these interviews, biomedical reasons for nonprescribing were cited in 50%-70% of patients, and contextual reasons in 64%-70%. The most common contextual reasons were comanagement with other clinicians (32%-35% of patients), patient preferences and nonadherence (15%-24%), and clinician belief that the medication is not indicated in the patient (12%-20%). CONCLUSIONS: Contextual reasons for not prescribing angiotensin converting enzyme inhibitor / angiotensin-receptor blockers and ß-blockers are present in two thirds of patients with heart failure who did not receive these medications, yet are poorly documented in medical records. The structure of medical records should be improved to facilitate documentation of contextual reasons for not providing guideline-recommended care.


Subject(s)
Adrenergic beta-Antagonists/therapeutic use , Angiotensin Receptor Antagonists/therapeutic use , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Guideline Adherence , Heart Failure, Systolic/drug therapy , Practice Patterns, Physicians'/statistics & numerical data , Prescription Drugs/therapeutic use , Aged , Aged, 80 and over , Female , Humans , Male , Medication Adherence/statistics & numerical data , Middle Aged , Patient Preference/statistics & numerical data , Practice Guidelines as Topic , Retrospective Studies , Veterans/psychology , Veterans/statistics & numerical data
17.
JAMA Intern Med ; 173(10): 866-73, 2013 May 27.
Article in English | MEDLINE | ID: mdl-23588999

ABSTRACT

IMPORTANCE: Despite ongoing controversies surrounding prostate-specific antigen (PSA) screening, many men 65 years or older undergo screening. However, few data exist that quantify the chain of events following screening in clinical practice to better inform decisions. OBJECTIVE: To quantify 5-year downstream outcomes following a PSA screening result exceeding 4.0 ng/mL in older men. DESIGN AND SETTING: Longitudinal cohort study in the national Veterans Affairs health care system. PARTICIPANTS: In total, 295,645 men 65 years or older who underwent PSA screening in the Veterans Affairs health care system in 2003 and were followed up for 5 years using national Veterans Affairs and Medicare data. MAIN OUTCOME MEASURES: Among men whose index screening PSA level exceeded 4.0 ng/mL, we determined the number who underwent prostate biopsy, were diagnosed as having prostate cancer, were treated for prostate cancer, and were treated for prostate cancer and were alive at 5 years according to baseline characteristics. Biopsy and treatment complications were also assessed. RESULTS: In total, 25,208 men (8.5%) had an index PSA level exceeding 4.0 ng/mL. During the 5-year follow-up period, 8313 men (33.0%) underwent at least 1 prostate biopsy, and 5220 men (62.8%) who underwent prostate biopsy were diagnosed as having prostate cancer, of whom 4284 (82.1%) were treated for prostate cancer. Performance of prostate biopsy decreased with advancing age and worsening comorbidity (P < .001), whereas the percentage treated for biopsy-detected cancer exceeded 75% even among men 85 years or older, those with a Charlson-Deyo Comorbidity Index of 3 or higher, and those having low-risk cancer. Among men with biopsy-detected cancer, the risk of death from non-prostate cancer causes increased with advancing age and worsening comorbidity (P < .001). In total, 468 men (5.6%) had complications within 7 days after prostate biopsy. Complications of prostate cancer treatment included new urinary incontinence in 584 men (13.6%) and new erectile dysfunction 588 men (13.7%). CONCLUSIONS AND RELEVANCE: Performance of prostate biopsy is uncommon in older men with abnormal screening PSA levels and decreases with advancing age and worsening comorbidity. However, once cancer is detected on biopsy, most men undergo immediate treatment regardless of advancing age, worsening comorbidity, or low-risk cancer. Understanding downstream outcomes in clinical practice should better inform individualized decisions among older men considering PSA screening.


Subject(s)
Biomarkers, Tumor/blood , Early Detection of Cancer/adverse effects , Prostate-Specific Antigen/blood , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/therapy , Age Factors , Aged , Aged, 80 and over , Biopsy , Comorbidity , Decision Making , Early Detection of Cancer/methods , Early Detection of Cancer/standards , Erectile Dysfunction/epidemiology , Erectile Dysfunction/etiology , False Positive Reactions , Humans , Longitudinal Studies , Male , Mass Screening , Medical Record Linkage , Medicare , Precision Medicine , Prostatic Neoplasms/immunology , Prostatic Neoplasms/prevention & control , Risk Assessment , Risk Factors , Survival Analysis , United States/epidemiology , United States Department of Veterans Affairs , Unnecessary Procedures , Urinary Incontinence/epidemiology , Urinary Incontinence/etiology
18.
J Am Geriatr Soc ; 60(10): 1872-80, 2012 Oct.
Article in English | MEDLINE | ID: mdl-23035702

ABSTRACT

OBJECTIVES: To determine patterns of co-occurring diseases in older adults and the extent to which these patterns vary between the young-old and the old-old. DESIGN: Observational study. SETTING: Department of Veterans Affairs. PARTICIPANTS: Veterans aged 65 years and older (1.9 million male, mean age 76 ± 7; 39,000 female, mean age 77 ± 8) with two or more visits to Department of Veterans Affairs (VA) or Medicare settings in 2007 and 2008. MEASUREMENTS: The presence of 23 common conditions was assessed using hospital discharge diagnoses and outpatient encounter diagnoses from the VA and Medicare. RESULTS: The mean number of chronic conditions (out of 23 possible) was 5.5 ± 2.6 for men and 5.1 ± 2.6 for women. The prevalence of most conditions increased with advancing age, although diabetes mellitus and hyperlipidemia were 11% to 13% less prevalent in men and women aged 85 and older than in those aged 65 to 74 (P < .001 for each). In men, the most common three-way combination of conditions was hypertension, hyperlipidemia, and coronary heart disease, which together were present in 37% of men. For women, the most common combination was hypertension, hyperlipidemia, and arthritis, which co-occurred in 25% of women. Reflecting their high population prevalence, hypertension and hyperlipidemia were both present in 9 of the 15 most common three-way disease combinations in men and in 11 of the 15 most common combinations in women. The prevalence of many disease combinations varied substantially between young-old and old-old adults. CONCLUSIONS: Specific combinations of diseases are highly prevalent in older adults and inform the development of guidelines that account for the simultaneous presence of multiple chronic conditions.


Subject(s)
Comorbidity/trends , Geriatrics , Aged , Aged, 80 and over , Female , Humans , Male , United States , Veterans
19.
Med Care ; 50(5): 399-405, 2012 May.
Article in English | MEDLINE | ID: mdl-22627680

ABSTRACT

BACKGROUND: Performance measures often fail to account for legitimate reasons why patients do not achieve recommended treatment targets. METHODS: We tested a novel performance measurement system for blood pressure (BP) control that was designed to mimic clinical reasoning. This clinically guided approach focuses on (1) exempting patients for whom tight BP control may not be appropriate or feasible and (2) assessing BP over time. Trained abstractors conducted structured chart reviews of 201 adults with hypertension in 2 VA health care systems. Results were compared with traditional methods of performance measurement. RESULTS: Among 201 veterans, 183 (91%) were male, and the mean age was 71±11 years. Using the clinically guided approach, 61 patients (30%) were exempted from performance measurement. The most common reasons for exemption were inadequate opportunity to manage BP (35 patients, 17%) and the use of 4 or more antihypertensive medications (19 patients, 9%). Among patients eligible for performance measurement, there was little agreement on the presence of controlled versus uncontrolled BP when comparing the most recent BP (the traditional approach) with an integrated assessment of BP control (κ 0.14). After accounting for clinically guided exemptions and methods of BP assessment, only 15 of 72 patients (21%) whose last BP was ≥140/90 mm Hg were classified as problematic by the clinically guided approach. CONCLUSIONS: Many patients have legitimate reasons for not achieving tight BP control, and the methods used for BP assessment have marked effects on whether a patient is classified as having adequate or inadequate BP control.


Subject(s)
Antihypertensive Agents/therapeutic use , Blood Pressure , Guideline Adherence/statistics & numerical data , Hypertension/drug therapy , Quality Indicators, Health Care , Adult , Aged , Aged, 80 and over , Antihypertensive Agents/administration & dosage , Antihypertensive Agents/adverse effects , Blood Pressure Determination , Female , Humans , Male , Medication Adherence , Middle Aged , Patient Education as Topic , Socioeconomic Factors , United States , United States Department of Veterans Affairs/statistics & numerical data
20.
J Gen Intern Med ; 26(10): 1152-9, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21604076

ABSTRACT

BACKGROUND: Older patients often receive less guideline-concordant care for heart failure than younger patients. OBJECTIVE: To determine whether age differences in heart failure care are explained by patient, provider, and health system characteristics and/or by chart-documented reasons for non-adherence to guidelines. DESIGN AND PATIENTS: Retrospective cohort study of 2,772 ambulatory veterans with heart failure and left ventricular ejection fraction <40% from a 2004 nationwide medical record review program (the VA External Peer Review Program). MAIN MEASURES: Ambulatory use of ACE inhibitors, angiotensin receptor blockers (ARBs), and beta blockers. RESULTS: Among 2,772 patients, mean age was 73 +/- 10 years, 87% received an ACE inhibitor or ARB, and 82% received a beta blocker. When patients with explicit chart-documented reasons for not receiving these drugs were excluded, 95% received an ACE inhibitor or ARB and 89% received a beta blocker. In multivariable analyses controlling for a variety of patient and health system characteristics, the adjusted odds ratio for ACE-inhibitor and ARB use was 0.43 (95% CI 0.24-0.78) for patients age 80 and over vs. those age 50-64 years, and the adjusted odds ratio for beta blocker use was 0.66 (95% CI 0.48-0.93) between the two age groups. The magnitude of these associations was similar but not statistically significant after excluding patients with chart-documented reasons for not prescribing ACE inhibitors or ARBs and beta blockers. CONCLUSIONS: A high proportion of veterans receive guideline-recommended medications for heart failure. Older veterans are consistently less likely to receive these drugs, although these differences were no longer significant when accounting for patients with chart-documented reasons for not prescribing these drugs. Closely evaluating reasons for non-prescribing in older adults is essential to assessing whether non-treatment represents good clinical judgment or missed opportunities to improve care.


Subject(s)
Cardiotonic Agents/therapeutic use , Heart Failure/drug therapy , Practice Guidelines as Topic/standards , Prescriptions/standards , Veterans , Age Factors , Aged , Aged, 80 and over , Cohort Studies , Female , Heart Failure/epidemiology , Humans , Male , Middle Aged , Retrospective Studies , United States/epidemiology
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